12) Test printing with the following command:
. lp -d printer_IP_name filename
This is incorrect. In order to print properly, you need to use the following:
lp -d print_queue_name filename
In other sections of the manual, it states to use lpr -P printer_IP_name. This is also incorrect, you need to use
lpr -P print_queue_name
For "lpr", the "print_queue_name" is the entry name in the "printcap" file.
For "lp", the "print_queue_name" is generated by the underlying UNIX printer spooler facility.